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吸光光度法에 의한 ProcaineㆍHC1과 LidocaineㆍHC의 分離定量
白采善,劉永精 朝鮮大學校 1976 綜合論文集 Vol.1976 No.-
A sensitive method for separative determining Procaine hydrochloride and Lidocaine hydrochloride in aqueous solutions is described, using Alizarin Red S as a complex forming agent. The method is based on the selective extraction of color-complex by specific organic solvent at an optimum pH and the intensity of color-complex can be quantitated spectrophotometically at 420nm. The Beer-Lambert law was adhered to over the 68.3-682.5㎍/ml of Procaine hydrochloride and the 54.2-216.8㎍/ml of Lidocaine hydrochloride. A stoichiometric relationship of 1:1.3 between Procaine hydrochloride. and the acid dye, and of 1:1.5 between Lidocaine hydrochloride and the acid dye is proved. The color was stable for at least 70min.